USB flash disk



FIG. 1 is a perspective view of a USB flash disk showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof ; and,

FIG. 8 is a perspective view thereof, wherein the device is shown in anopen position.

The ornamental design for a USB flash disk, as shown and described.